diff options
| author | Daeho Jeong <daehojeong@google.com> | 2024-10-17 10:31:53 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2024-11-01 01:19:00 +0000 |
| commit | 128d333f0dff2fbe41c546581c6f151e9d68cd4c (patch) | |
| tree | 701a9e56664e7121726a72d1c48c2eb6cd4a6348 /include/uapi/linux | |
| parent | fa08972bcb7baaf5f1f4fdf251dc08bdd3ab1cf0 (diff) | |
f2fs: introduce device aliasing file
F2FS should understand how the device aliasing file works and support
deleting the file after use. A device aliasing file can be created by
mkfs.f2fs tool and it can map the whole device with an extent, not
using node blocks. The file space should be pinned and normally used for
read-only usages.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/f2fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/f2fs.h b/include/uapi/linux/f2fs.h index 955d440be104..f7aaf8d23e20 100644 --- a/include/uapi/linux/f2fs.h +++ b/include/uapi/linux/f2fs.h @@ -43,6 +43,7 @@ #define F2FS_IOC_DECOMPRESS_FILE _IO(F2FS_IOCTL_MAGIC, 23) #define F2FS_IOC_COMPRESS_FILE _IO(F2FS_IOCTL_MAGIC, 24) #define F2FS_IOC_START_ATOMIC_REPLACE _IO(F2FS_IOCTL_MAGIC, 25) +#define F2FS_IOC_GET_DEV_ALIAS_FILE _IOR(F2FS_IOCTL_MAGIC, 26, __u32) /* * should be same as XFS_IOC_GOINGDOWN. |